00302nam a2200109Ia 450000500170000000800410001708200140005810000140007224500560008626000420014230000080018420260224040859.0260224s9999||||xx |||||||||||||| ||und||  a574.3 RUG  aRugh, R.  0aExperimental embryology; techniques and procedures.  aUSA: Burgess Publishing Companyc1962  a501